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Metalurgija, Vol.56 No.1-2 Siječanj 2017.

Izvorni znanstveni članak

Zinc ferrite nanoparticles as perspective functional materials for applications in casting technologies

A. Kmita ; AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Krakow, Poland
J. Żukrowski ; AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Krakow, Poland
K. Hodor ; Netzsch Instrumenty sp. z o.o., Poland
H. Smogór ; Netzsch Instrumenty sp. z o.o., Poland
M. Sikora ; AGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, Krakow, Poland

Puni tekst: engleski, pdf (200 KB) str. 29-32 preuzimanja: 214* citiraj
APA
Kmita, A., Żukrowski, J., Hodor, K., Smogór, H., Sikora, M. (2017). Zinc ferrite nanoparticles as perspective functional materials for applications in casting technologies. Metalurgija, 56(1-2), 29-32. Preuzeto s http://hrcak.srce.hr/168846

Sažetak
In this article it discuss on possible application of magnetic oxide nanoparticles, namely non-stoichiometric zinc ferrite nanoparticles as a functionalizing agent in foundry processes. Thermal analysis showed a weight loss of the sample at 1 273 K in an amount of 7,7 %, which is a result of the following processes taking place in different temperature ranges. Upon its thermal treatment Zn0,4Fe2,6O4 decomposes to zinc oxide and iron (III) oxide (first stage) and next to iron (II,III) oxide and oxygen (second stage). The degree of decomposition was expressed as Fe2+ / Fetotal. Mössbauer spectroscopy showed that the over 30 % of Fe3+ present in starting material was reduced to Fe2+.

Ključne riječi
casting, zinc ferrite nanoparticles; Mössbauer Spectroscopy; magnetic nanoparticles; thermal decomposition

Hrčak ID: 168846

URI
http://hrcak.srce.hr/168846

Posjeta: 304 *